References from the California Lichen Catalog
- TUCKER, S. C., & W. P. JORDAN. 1979 (1978).
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A catalog of California lichens.
Wasmann Journal of Biology 36: 1–105.
- TUCKER, S. C., & D. T. KOWALSKI. 1975.
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New state records from northern California.
The Bryologist 78: 366–368.
Complete references section